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Beppo Levi

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Beppo Levi

Beppo Levi
Born (1875-05-14)May 14, 1875
Turin, Italy
Died August 28, 1961(1961-08-28) (aged 86)
Rosario, Argentina
Dedication at the Instituto Politécnico Superior in Rosario, Argentina
Tombstone, Rosario's Jewish Cemetery

Beppo Levi (14 May 1875 – 18 August 1961) was an Italian mathematician. He published high-level academic articles and books, not only on mathematics, but also on physics, history, philosophy, and pedagogy. Levi was a member of the Bologna Academy of Sciences and of the Accademia dei Lincei.

Early years

Beppo Levi was born on May 14, 1875, in Turin, Italy. He obtained his Ph.D. in mathematics at age 21 from the University of Turin, where he was appointed Assistant Professor three months later and shortly thereafter became a full-time Scholar. Levi was appointed Professor at the University of Piacenza in 1901, at the University of Cagliari in 1906, at the University of Parma in 1910, and finally at the University of Bologna in 1928. The years that followed his last appointment saw the rise of Benito Mussolini's power and of antisemitism in Italy, and Levi, being Jewish, was soon expelled from his position at the University of Bologna. He emigrated to Argentina, as did many other European Jews at that time.

Life in Argentina

Levi chose Argentina because of an invitation by the engineer Cortés Plá, dean of the Facultad de Ciencias Matemáticas, Físico-Químicas y Naturales Aplicadas a la Industria at the Universidad Nacional del Litoral (currently Facultad de Ciencias Exactas, Ingeniería y Agrimensura at the Universidad Nacional de Rosario) in the city of Rosario. Cortés Plá invited Levi to come to Rosario to head the recently created Instituto de Matemática. It was there that Levi did most of his work from 1939 until his death in 1961.

While living in Rosario, Levi joined a group of mathematicians that included Luis Santaló, Simón Rubinstein, Juan Olguín, Enrique Ferrari, Fernando and Enrique Gaspar, Mario Castagnino and Edmundo Rofman. In 1940 Levi founded Mathematicae Notae, the first mathematical journal in Argentina. In 1956 he was awarded the Italian Premio Feltrinelli.

He died on August 28, 1961 in Rosario, Argentina, and was buried in the Jewish cemetery there.

Mathematical contributions

His early work studied singularities on algebraic curves and surfaces. In particular, he supplied a proof (questioned by some) that a procedure for resolution of singularities on algebraic surfaces terminates in finitely many steps. Later he proved some foundational results concerning Lebesgue integration, including a statement that even today appears in many measure theory textbooks as "Beppo Levi's lemma".

He also studied the arithmetic of elliptic curves. He classified them up to isomorphism, not only over C, but also over Q. Next he studied what in modern terminology would be the subgroup of rational torsion points on an elliptic curve over Q: he proved that certain groups were realizable and that others were not. He essentially formulated a conjecture as to what the complete list of possibilities should be, a conjecture that was to be made independently by Andrew Ogg about 60 years later, and finally proved by Barry Mazur.

Bibliography

  • Coen, Salvatore (1999), "Beppo Levi: una biografia (a biography)", in Levi, Beppo, Opere (Collected Works). Volume I: 1897-1906, Bologna: Edizioni Cremonese (distributed by   (in Italian).
  •  

References

External links

  • Beppo Levi at the Mathematics Genealogy Project.
  • Coen, Salvatore; Lanconelli, Ermanno, eds. (June 12–13, 2008), Convegno Italo – Argentino in onore di Beppo Levi (Italian – Argentinian meeting in honour of Beppo Levi), Bologna . The web site of a scientific meeting in Bologna, honouring the memory of Beppo Levi.
  • Guerraggio, Angelo; Nastasi, Pietro (2008–2010), "Beppo Levi (1875–1961)", Edizione Nazionale Mathematica Italiana (in Italian),   (in Italian). Available from the Edizione Nazionale Mathematica Italiana.
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